The fifth victim is an adult, but police have not confirmed her relationship to the family.

It is unclear why someone called police Saturday to request a security check at the home, but when officers arrived, they discovered all five of the bodies. Officials did not say how long the bodies had been inside the home before they were found.

Martinez did not live at the home, police said.

The Modesto Police Department has not released a motive for the killings or cause of death.

Graves said that in her 14 years with the police department, she couldn't recall a situation to the extent of five homicide victims in one home. The five deaths bring the total of homicide victims in Modesto to 15 this year.

Crews' Previous Loss

Family members and friends said Crews experienced tragedy last year with the loss of her young son.Christopher Ripley, 2, died in October after being in a coma.

Family members said Christopher was injured under mysterious circumstances while in Martinez's care.

"Now she can be with her son again because she just lost her son, like six or seven months ago," said Mary Williams, one of Crews' patients.

The Manhunt For Martinez

On Saturday, officials in Modesto contacted the San Jose Police Department for assistance with the investigation and provided information on Martinez as a person of interest.

Police believed Martinez was en route to a family member's home in San Jose driving a red Lincoln Navigator SUV.

Just before 10 p.m., San Jose police located the vehicle in the 2400 block of Lucerne Way, but there was no one inside.

Officers later received information that Martinez was not at the Lucerne Way address, but had left with a family member in a different vehicle.

On Sunday around 1 a.m., officers found the vehicle, but it was also unoccupied in the parking lot at Oakridge Mall in San Jose. A few moments later, Martinez was arrested without incident as he walked back to the vehicle.

Martinez was booked into Santa Clara County Jail.

He will soon be transported to the Stanislaus County Jail to await a trial.